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Heat Shrink Insulation Tubing

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Heat-shrinkable busbar insulation tubing. Busbar heat-shrinkable tubing are suitable for use on long runs of rectangular or round busbars. The tubing shrinks down to 40% of their original diameter and, due to excellent flexibility, conform tightly to a wide range of sizes. BBIT/BPTM tubing can be slid easily into place, even around several bends and awkward shapes. The wall thickness is controlled by heat-shrink process. Available for over fifteen sizes of busbars from 5 mm to over 250 mm, BPTM/RBPM is suitable for applications up to 24 kV. BBIT is suitable for applications up to and over 36 kV.

Insulation enhancement and protection against flashover and accidentally induced discharge
Excellent flexibility enables installation on wide range of curved or bent busbars without cracking or creasing
Exceptional insulation and long-term reliability even at high continuous operating temperatures
Non-Halogen based material

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Specifications

BBIT

BBIT should normally be used on the following busbar sizes

Product selection

Product size	Rectangular bars L + T (mm)		Round bars D (mm)
Product size	min.	max.	min.	max.
BBIT 25/10	17	28	11	20
BBIT 40/16	28	45	18	32
BBIT 65/25	44	69	28	47
BBIT 100/40	6	102	44	72
BBIT 150/60	102	148	65	105
BBIT 175/80	133	196	85	125

Ordering information

Ordering description	Inside diameter (mm)		Wall thickness (mm)		UOM: roll
Ordering description	H min.	h max.	W nom.	w min.	length (m)
BBIT-25/10-A/U-4 25	10	1.6	3.6	25
BBIT-40/16-A/U-4 40	16	1.6	3.6	20
BBIT-65/25-A/U-4 65	25	1.6	3.6	15
BBIT-100/40-A/U-4	100	40	1.6	3.6	15
BBIT-150/60-A/U-4	150	60	1.6	3.6	15
BBIT-175/80-A/U-4	175	80	1.6	3.6	10

BPTM / RBPM

BPTM should normally be used on the following busbar sizes

Product selection

Product size	Rectangular bars L + T (mm)		Round bars D (mm)
Product size	min.	max.	min.	max.
BPTM 15/6	12	18	6.5	12
BPTM 30/12	22	38	13.5	25
BPTM 50/20	36	65	22	43
BPTM 75/30	55	95	33	63
BPTM 100/40	70	130	44	86
BPTM 120/50	90	165	55	105
BPTM 175/70	125	235	80	150
BPTM 205/110	200	276	127	190
BPTM 235/130	235	315	150	220

Ordering information

Ordering description	Inside diameter (mm)		Wall thickness (mm)		UOM: roll
Ordering description	H min.	h max.	W nom.	w min.	length (m)
BPTM-15/6-A/U-4	15	6	1.1	1.90	30
BPTM-30/12-A/U-4	30	12	1.1	2.20	30
BPTM-50/20-A/U-4	50	20	1.1	2.35	30
BPTM-75/30-A/U-4	75	30	1.1	2.35	20
BPTM-100/40-A/U-4	100	40	1.1	2.35	25
BPTM-120/50-A/U-4	120	50	1.3	2.80	25
BPTM-175/70-A/U-4	175	70	1.3	2.80	15
BPTM-205/110-A/U-4	205	110	1.3	2.80	10
BPTM-235/130-A/U-4	235	130	1.5	3.10	20

Technical Information

Key product specifications	Test method	Requirement
Thermal endurance	IEC 216	105 °C min.
Accelerated ageing Tensile strength Ultimate elongation	ISO 188, ASTM D2671	168 hrs @ 120 °C 10 MPa min. 300% min.
Comparative tracking index	IEC 112, VDE 0303/1	KA 3c
Dielectric strength	ASTM D149, IEC 243	180 kV/cm min. @ 2 mm 150 kV/cm min. @ 2.5 mm 120 kV/cm min. @ 3 mm
Smoke index	NES 711	Less than 120
Acid gas generation	Raychem PPS 3010 4.23	Less than 1% by weight
Low temperature flexibility	ASTM D2671 Procedure C	No cracking after 4 hrs @ -40 °C
Flammability	ANSI C37.20/IEEE-27	No flame conveyance, 60 sec. max.
Tracking and Erosion Resistance	ASTM D2303	No tracking, erosion to top surface or flame failure after 1 hr. at 2.5kV, after 1 hr. at 2.75kV, 1% max.